Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Discussion Forum
:

720D COMPRESSION

Welcome Guest, Log in or Register
Author 
TRKTRPULR

10-23-2002 06:50:03




Report to Moderator

IS IT POSSIBLE TO HAVE TOO MUCH COMPRESSION? WHATDO YOU THINK?




[Log in to Reply]   [No Email]
Clooney

10-23-2002 08:49:12




Report to Moderator
 Re: 720D COMPRESSION in reply to TRKTRPULR, 10-23-2002 06:50:03  
TRKTRPULR, define your question a little more. Do you think you have too much compression on your 720? Or do you want to add more compression for pulling or other reasons? The compression isn't easy to change on the 720 as the head is flat so milling it doesn't change anything. ~Long term carbon build up will raise it though.
~As G-MAN said raising the compression also raises the pumping losses & you will have more heat & a higher C-tane fuel requirement. So the basic answer to your question is yes....

[Log in to Reply]  [No Email]
G-MAN

10-23-2002 07:35:14




Report to Moderator
 Re: 720D COMPRESSION in reply to TRKTRPULR, 10-23-2002 06:50:03  
In a diesel tractor, I believe it is possible to have too much compression. In a diesel, you're only compressing air, not a fuel-air mix as in a gas burner. As long as you have enough compression to properly heat the air to provide good ignition upon injection, that is all that is required. Obviously, the more you compress the air, the hotter it will get and you will get a better fuel burn and some more power, but it also takes power to push that piston up on the compression stroke. The more compression you're running, the more power it will take to power the pistons through the compression stroke. I would think that at a certain point, you will get to a situation of minimal returns. As you raise compression, you're also increasing the load on the internal engine parts, as well as increasing the load on the cooling and lubrication systems. If you're dealing with a spark-ignition engine, it is also possible to have too much compression, as you can get into a situation where your fuel has insufficient octane to prevent preignition and detonation, which will destroy an engine faster than about anything.

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy